CN209927682U - Sensor suitable for monitoring environmental particles - Google Patents
Sensor suitable for monitoring environmental particles Download PDFInfo
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- CN209927682U CN209927682U CN201920534088.3U CN201920534088U CN209927682U CN 209927682 U CN209927682 U CN 209927682U CN 201920534088 U CN201920534088 U CN 201920534088U CN 209927682 U CN209927682 U CN 209927682U
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- aspheric lens
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- protective housing
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Abstract
The utility model discloses a be suitable for sensor of environmental particulate matter monitoring, including protective housing, protective housing internal fixation has first laser instrument, second laser instrument, protective housing internal fixation has first aspheric lens, protective housing internal fixation has second aspheric lens, first aspheric lens with be fixed with first condensing lens, second condensing lens between the second aspheric lens, protective housing internal fixation has first photo detector and second photo detector, the last blast pipe that is connected with of protective housing, be fixed with electric motor in the blast pipe, electric motor's the coaxial fixedly connected with pivot of output, be fixed with in the pivot and be used for arranging protective housing inside air's plectrum, a plurality of inlet air aperture has been seted up along circumference to protective housing's lower extreme lateral wall. The beneficial effects of the utility model are that it is convenient, simple structure and environment granule detection effect are better to use.
Description
Technical Field
The utility model relates to a sensor field, in particular to be suitable for sensor of environmental particulate matter monitoring.
Background
With the frequent occurrence of environmental particles, which are direct health-damaging factors such as arteriosclerosis, cancer, bronchitis, etc., the global concern and the increasing amount of air environmental quality have increased, and the demand for air quality sensors with high accuracy has also increased.
Therefore, it is necessary to design a sensor suitable for monitoring environmental particles, which is convenient to use, simple in structure and good in environmental particle detection effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be suitable for sensor of environmental particle monitoring can realize the effect of proposing among the above-mentioned background art.
The utility model provides a sensor suitable for environmental particulate matter monitoring, including the protective housing, be fixed with first laser instrument, the second laser instrument that the symmetry set up on the inner wall of protective housing, be fixed with in the protective housing and be used for assembling the first aspheric lens that the first laser instrument sent laser, be fixed with in the protective housing and be used for assembling the second aspheric lens that the second laser instrument sent laser, be fixed with between first aspheric lens and the second aspheric lens and be used for assembling first condensing lens and the second condensing lens that the second aspheric lens passed through laser, be fixed with in the protective housing and be used for detecting first photo detector and the second photo detector of the laser that dust particle between first condensing lens and the second condensing lens reflects, be connected with the blast pipe on the protective housing, a plurality of small air inlet holes are formed in the side wall of the lower end of the protective shell along the circumferential direction.
Preferably, an electric motor is fixed in the exhaust pipe, a rotating shaft is coaxially and fixedly connected to an output end of the electric motor, and a poking blade used for exhausting air in the protective shell is fixed on the rotating shaft.
Preferably, the protective shell is of a cylindrical structure.
Preferably, the first laser and the second laser are both semiconductor lasers.
Preferably, the first condenser and the second condenser are symmetrically arranged.
Preferably, a gap channel for the first aspheric lens and the second aspheric lens to pass through laser is left between the first condenser lens and the second condenser lens.
Preferably, the first photodetector and the second photodetector are symmetrically arranged.
Preferably, the first photodetector and the second photodetector are both semiconductor photodetectors that convert optical signals into electrical signals by using the internal photoelectric effect of a semiconductor P-N junction, the first photodetector is connected to a first optical receiving end for receiving optical signals, and the second photodetector is connected to a second optical receiving end for receiving optical signals.
Preferably, the electric motor is fixedly connected with the inner wall of the exhaust pipe through a welding rod.
Preferably, the exhaust pipe is located at the center of the upper surface of the protective casing.
The utility model has the advantages that:
1. this be suitable for sensor of environmental particles monitoring, through designing into cylinder type structure with protective housing, and a plurality of air inlet aperture has been seted up along circumference at protective housing's lower extreme lateral wall, be connected with the blast pipe on protective housing, be fixed with electric motor in the blast pipe, electric motor's the coaxial fixedly connected with pivot of output, be fixed with the plectrum piece that is used for arranging protective housing inside air in the pivot, this kind of design can effectual assurance get into protective housing air's homogeneity, reach the even slow passage of dust granule in the air between first condensing lens and the second condensing lens, improve the detection effect.
2. The sensor suitable for monitoring the environmental particulate matters comprises a first laser and a second laser which are symmetrically arranged and fixed on the inner wall of a protective shell, a first aspheric lens used for converging laser light emitted by the first laser and fixed in the protective shell, a second aspheric lens used for converging laser light emitted by the second laser and fixed in the protective shell, a first condenser and a second condenser used for converging the laser light transmitted by the first aspheric lens and the second aspheric lens and fixed between the first aspheric lens and the second aspheric lens, a first light detector and a second light detector used for detecting the laser light reflected by dust particles between the first condenser and the second condenser and fixed in the protective shell, wherein the particles between the first light detector and the second light detector form reflected light signals under the action of two opposite laser beams, and the light signals reach the first laser and the second laser through optical fiber transmission, After the first optical receiving end and the second optical receiving end, optical signals are converted into electric signals through the corresponding first optical detector and the corresponding second optical detector, then the electric circuits amplify the electric signals, and finally the electric signals are restored into original signals, so that better detection of environmental particles is achieved, and the whole device is simple in structure and convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a sensor suitable for monitoring environmental particulate matters provided by the present invention;
fig. 2 is a schematic diagram of an internal structure of a sensor suitable for monitoring environmental particles provided by the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Description of reference numerals: 1-a protective housing; 11-a first laser; 12-a second laser; 13-a first aspheric lens; 14-a second aspheric lens; 15-a first condenser; 16-a second condenser lens; 17-a first light detector; 18-a second light detector; 19-a first light receiving end; 110-a second light receiving end; 111-a clearance channel; 2-an exhaust pipe; 21-an electric motor; 22-a rotating shaft; 23-poking the leaves; 3-small air inlet holes; 4-dust particles.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1 to 3, a sensor suitable for monitoring environmental particles provided by an embodiment of the present invention includes a protective housing 1, a first laser 11 and a second laser 12 symmetrically disposed are fixed on an inner wall of the protective housing 1, a first aspheric lens 13 for converging laser light emitted by the first laser 11 is fixed in the protective housing 1, a second aspheric lens 14 for converging laser light emitted by the second laser 12 is fixed in the protective housing 1, a first collecting lens 15 and a second collecting lens 16 for converging laser light transmitted by the first aspheric lens 13 and the second aspheric lens 14 are fixed between the first aspheric lens 13 and the second aspheric lens 14, a first light detector 17 and a second light detector 18 for detecting laser light reflected by dust particles 4 between the first collecting lens 15 and the second collecting lens 16 are fixed in the protective housing 1, the exhaust pipe 2 is connected to the protective shell 1, and a plurality of small air inlet holes 3 are formed in the side wall of the lower end of the protective shell 1 along the circumferential direction.
In this embodiment, an electric motor 21 is fixed in the exhaust pipe 2, an output end of the electric motor 21 is coaxially and fixedly connected with a rotating shaft 22, and a paddle 23 for exhausting air inside the protective housing 1 is fixed on the rotating shaft 22.
In this embodiment, the protective casing 1 has a cylindrical structure.
In this embodiment, the first laser 11 and the second laser 12 are both semiconductor lasers.
In this embodiment, the first condenser 15 and the second condenser 16 are symmetrically disposed.
In this embodiment, a gap channel 111 for the first aspheric lens 13 and the second aspheric lens 14 to transmit laser is left between the first condenser 15 and the second condenser 16.
In this embodiment, the first photodetector 17 and the second photodetector 18 are symmetrically disposed.
In this embodiment, the first photodetector 17 and the second photodetector 18 are both semiconductor photodetectors that convert optical signals into electrical signals by using the internal photoelectric effect of a semiconductor P-N junction, the first photodetector 17 is connected to a first optical receiver 19 that receives optical signals, and the second photodetector 18 is connected to a second optical receiver 110 that receives optical signals.
In this embodiment, the electric motor 21 is fixedly connected to the inner wall of the exhaust pipe 2 by a welding rod.
In this embodiment, the exhaust pipe 2 is located at the center of the upper surface of the protective housing 1.
The working principle is as follows: this be suitable for sensor of environmental particles monitoring, through designing into cylinder type structure with protecting casing 1, and a plurality of inlet aperture 3 has been seted up along circumference at protecting casing 1's lower extreme lateral wall, be connected with blast pipe 2 on protecting casing 1, 2 internal fixation of blast pipe have electric motor 21, the coaxial fixedly connected with pivot 22 of electric motor 21's output, be fixed with the blade 23 of dialling that is used for arranging protecting casing 1 inside air in the pivot 22, this kind of design can effectually guarantee the homogeneity that gets into protecting casing 1 air, reach the even slow passage of dust granule 4 in the air between first condensing lens 15 and the second condensing lens 16, improve the detection effect. The sensor suitable for monitoring the environmental particulate matters is characterized in that a first laser 11 and a second laser 12 which are symmetrically arranged are fixed on the inner wall of a protective shell 1, a first aspheric lens 13 used for converging laser light emitted by the first laser 11 is fixed in the protective shell 1, a second aspheric lens 14 used for converging laser light emitted by the second laser 12 is fixed in the protective shell 1, a first condenser 15 and a second condenser 16 used for converging laser light transmitted by the first aspheric lens 13 and the second aspheric lens 14 are fixed between the first aspheric lens 13 and the second aspheric lens 14, a first light detector 17 and a second light detector 18 used for detecting the laser light reflected by dust particles 4 between the first condenser 15 and the second condenser 16 are fixed in the protective shell 1, wherein the particles between the first light detector 17 and the second light detector 18 form reflected light signals under the action of two opposite laser beams, after the optical signal reaches the first optical receiving end 19 and the second optical receiving end 110 through optical fiber transmission, the optical signal is converted into an electric signal through the corresponding first optical detector 17 and the second optical detector 18, then the electric signal is amplified by an electronic circuit, and finally the electric signal is reduced into the original signal, so that the environmental particles are better detected, and the whole device is simple in structure and convenient to use.
The above disclosure is only for the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.
Claims (10)
1. A sensor adapted for environmental particulate matter monitoring, characterized by: including protection casing (1), be fixed with first laser instrument (11), second laser instrument (12) that the symmetry set up on the inner wall of protection casing (1), protection casing (1) internal fixation has and is used for assembling first aspheric lens (13) that first laser instrument (11) sent laser, protection casing (1) internal fixation has and is used for assembling second aspheric lens (14) that second laser instrument (12) sent laser, first aspheric lens (13) with be fixed with between second aspheric lens (14) and be used for assembling first aspheric lens (13) with second aspheric lens (14) see through first condensing lens (15), second condensing lens (16) of laser, protection casing (1) internal fixation has and is used for detecting first condensing lens (15) with first photo detector (17) and second photo detector (18) of the laser of dust particle (4) reflection between second condensing lens (16) ) The exhaust pipe (2) is connected to the protective shell (1), and a plurality of small air inlet holes (3) are formed in the side wall of the lower end of the protective shell (1) along the circumferential direction.
2. A sensor suitable for monitoring environmental particulate matters according to claim 1, wherein an electric motor (21) is fixed in the exhaust pipe (2), an output end of the electric motor (21) is coaxially and fixedly connected with a rotating shaft (22), and a poking blade (23) for exhausting air in the protective shell (1) is fixed on the rotating shaft (22).
3. A sensor adapted for environmental particulate monitoring, according to claim 1, wherein the protective casing (1) is of cylindrical configuration.
4. A sensor adapted for environmental particulate monitoring according to claim 1, wherein the first laser (11) and the second laser (12) are semiconductor lasers.
5. A sensor adapted for ambient particle monitoring according to claim 1, wherein said first condenser (15) is arranged symmetrically to said second condenser (16).
6. A sensor adapted for environmental particle monitoring according to claim 1, wherein a clearance channel (111) for the laser light to pass through is left between the first condenser lens (15) and the second condenser lens (16).
7. A sensor adapted for environmental particulate monitoring according to claim 1, wherein the first light detector (17) is arranged symmetrically to the second light detector (18).
8. A sensor adapted for environmental particulate monitoring according to claim 1, wherein the first photodetector (17) and the second photodetector (18) are both semiconductor photodetectors that convert optical signals into electrical signals by using the internal photoelectric effect of a semiconductor P-N junction, the first photodetector (17) is connected to a first light receiving end (19) for receiving optical signals, and the second photodetector (18) is connected to a second light receiving end (110) for receiving optical signals.
9. A sensor adapted for ambient particle monitoring according to claim 2, wherein the electric motor (21) is fixedly connected to the inner wall of the exhaust pipe (2) by means of a welding rod.
10. A sensor adapted for ambient particulate matter monitoring according to claim 1, wherein the exhaust pipe (2) is located centrally on the upper surface of the protective casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534088.3U CN209927682U (en) | 2019-04-18 | 2019-04-18 | Sensor suitable for monitoring environmental particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920534088.3U CN209927682U (en) | 2019-04-18 | 2019-04-18 | Sensor suitable for monitoring environmental particles |
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| Publication Number | Publication Date |
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| CN209927682U true CN209927682U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920534088.3U Active CN209927682U (en) | 2019-04-18 | 2019-04-18 | Sensor suitable for monitoring environmental particles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975187A (en) * | 2019-04-18 | 2019-07-05 | 无锡豪帮高科股份有限公司 | A kind of laser sensor suitable for the monitoring of ambient particle object |
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2019
- 2019-04-18 CN CN201920534088.3U patent/CN209927682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975187A (en) * | 2019-04-18 | 2019-07-05 | 无锡豪帮高科股份有限公司 | A kind of laser sensor suitable for the monitoring of ambient particle object |
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